WO2010026868A1 - Sphygmomanomètre électronique fournissant des valeurs de mesure avec une fiabilité améliorée - Google Patents

Sphygmomanomètre électronique fournissant des valeurs de mesure avec une fiabilité améliorée Download PDF

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Publication number
WO2010026868A1
WO2010026868A1 PCT/JP2009/064426 JP2009064426W WO2010026868A1 WO 2010026868 A1 WO2010026868 A1 WO 2010026868A1 JP 2009064426 W JP2009064426 W JP 2009064426W WO 2010026868 A1 WO2010026868 A1 WO 2010026868A1
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WIPO (PCT)
Prior art keywords
pressure
cuff
blood pressure
unit
detected
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PCT/JP2009/064426
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English (en)
Japanese (ja)
Inventor
幸哉 澤野井
寛志 岸本
正樹 富岡
直美 松村
麗二 藤田
雄一郎 玉木
新吾 山下
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オムロンヘルスケア株式会社
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Application filed by オムロンヘルスケア株式会社 filed Critical オムロンヘルスケア株式会社
Priority to DE112009002133T priority Critical patent/DE112009002133T5/de
Priority to CN2009801347153A priority patent/CN102143705B/zh
Publication of WO2010026868A1 publication Critical patent/WO2010026868A1/fr
Priority to US13/041,044 priority patent/US20110152700A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7221—Determining signal validity, reliability or quality
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric method
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02233—Occluders specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds

Definitions

  • the present invention relates to an electronic sphygmomanometer, and more particularly to an electronic sphygmomanometer that improves the reliability of blood pressure measurement values.
  • Blood pressure is one of the indicators for analyzing cardiovascular diseases. Analyzing the risk of cardiovascular disease based on blood pressure is effective in preventing cardiovascular diseases such as stroke, heart failure and myocardial infarction.
  • cardiovascular diseases such as stroke, heart failure and myocardial infarction.
  • early morning hypertension in which blood pressure rises in the early morning, is related to heart disease and stroke.
  • morning surge a symptom of a sudden rise in blood pressure between 1 hour and 1.5 hours after waking up, called morning surge, has a causal relationship with stroke.
  • grasping the correlation between time (lifestyle) and blood pressure change is useful for risk analysis of cardiovascular diseases. Therefore, it is necessary to continuously measure blood pressure over a long period of time.
  • Patent Document 1 Japanese Patent Laid-Open No. 7-51233
  • the error of the measured value depending on the characteristics of the pressure sensor for blood pressure measurement is corrected. Processing for this is performed at the time of production of the electronic blood pressure monitor.
  • Patent Document 1 correction relating to a pressure sensor is performed based on the difference in characteristics of individual electronic blood pressure monitors at the time of production of the electronic blood pressure monitors.
  • home sphygmomanometers are generally not regularly calibrated after purchase, except in certain situations, such as when they break down. Therefore, for example, even if the output of the pressure sensor, which is the most important for blood pressure measurement, deviates beyond the specified tolerance, there is no way to know the phenomenon, and it is unknown whether the blood pressure measurement value is correct. . Therefore, even if the blood pressure measurement value is significantly different from the normal blood pressure value or occasional blood pressure, it is unknown whether the blood pressure value is truly different or due to the error of the pressure sensor of the sphygmomanometer. It contributed to anxiety.
  • some blood pressure monitors for medical facilities are equipped with two pressure sensors and monitor pressure based on the output of these pressure sensors.
  • the functions of the two pressure sensors have been used for other purposes. That is, the blood pressure is calculated based on the cuff pressure information obtained by one pressure sensor, and abnormality is detected based on the output of the other pressure sensor. Specifically, an abnormality is detected when the detected pressure value of the pressure sensor greatly exceeds 300 mmHg, for example. In this case, the pump is stopped and the valve is opened to ensure safety. Therefore, the other pressure sensor is applied for safety measures defined in the medical standard IEC 60601-2-30, and does not guarantee the accuracy of one pressure sensor used for blood pressure measurement.
  • the accuracy of one pressure sensor for blood pressure calculation needs to be guaranteed by the pressure sensor itself.
  • a high-precision pressure sensor that is not affected by disturbance such as a temperature change and has little secular change is required. Therefore, it is necessary to use an expensive pressure sensor.
  • the failure rate of the sphygmomanometer due to the failure of the pressure sensor is simply doubled compared to a sphygmomanometer having one pressure sensor.
  • an electronic sphygmomanometer includes a cuff attached to a measurement site, a pressurization / decompression unit for adjusting pressure applied to the cuff, and a plurality of pressure sensors, and outputs from the plurality of pressure sensors.
  • a pressure detection unit for detecting the cuff pressure in the cuff based on the pressure information
  • a blood pressure calculation unit for calculating a blood pressure based on a change in the cuff pressure detected by the pressure detection unit, and a plurality of pressure sensors Based on the cuff pressure corresponding to each of the plurality of pressure sensors detected according to the output pressure information, blood pressure measurement and abnormality detection for the plurality of pressure sensors are performed.
  • the blood pressure calculation unit calculates the blood pressure based on the cuff pressure corresponding to each of the plurality of pressure sensors.
  • the blood pressure calculation unit calculates the blood pressure based on an average of cuff pressures corresponding to each of the plurality of pressure sensors.
  • the blood pressure calculation unit calculates the blood pressure based on the median cuff pressure corresponding to each of the plurality of pressure sensors.
  • the electronic sphygmomanometer further includes an abnormality detection unit that detects abnormality of the plurality of pressure sensors.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors with each other, and detects that at least one of the plurality of pressure sensors is abnormal based on the comparison result.
  • the blood pressure calculation unit excludes the cuff pressure corresponding to the pressure sensor detected as abnormal from the plurality of pressure sensors from the data used for blood pressure calculation.
  • the electronic sphygmomanometer further includes a storage unit for storing blood pressure data calculated by the blood pressure calculation unit.
  • the detection result by the abnormality detection unit is stored in the storage unit in association with the blood pressure data.
  • the pressure information is calculated in the process of pressurizing or depressurizing the pressure applied to the cuff by the pressurizing / depressurizing unit.
  • the pressure information is detected at each time when the cuff pressure indicates a plurality of predetermined levels in the process of pressurizing or depressurizing.
  • the abnormality detection unit compares pressure information corresponding to each of the plurality of pressure sensors, and based on the comparison result, at least one of the plurality of pressure sensors. One is abnormal.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors, and based on the comparison result, the plurality of pressure sensors. It is detected that at least one of them is abnormal.
  • the abnormality detection unit compares pressure information corresponding to each of the plurality of pressure sensors at a predetermined cuff pressure with each other, and detects that at least one of the plurality of pressure sensors is abnormal based on the comparison result.
  • the predetermined cuff pressure corresponding to each of the plurality of pressure sensors is the pressure information output by the pressure sensor when a pressure of 0 mmHg is applied to the cuff when measuring the blood pressure, and the cuff acquired in advance when the pressure sensor is calibrated. This refers to the difference from the pressure information output by the pressure sensor when a pressure of 0 mmHg is applied.
  • pressure information corresponding to each of the plurality of pressure sensors is detected in a state where the cuff is wound around the cylindrical member and a predetermined amount of air is introduced into the cuff.
  • the electronic sphygmomanometer includes a main body separate from the cuff.
  • the main body includes a pressurizing / depressurizing unit, a pressure detecting unit, a blood pressure calculating unit, and an abnormality detecting unit.
  • the housing of the main body is configured by a columnar member.
  • the electronic sphygmomanometer includes a tank capable of storing a predetermined amount of air, a first air flow path leading to the pressurization / decompression section and the pressure detection section, a second air flow path leading to the cuff, and a tank And a flow path switching unit that selectively connects either the second air flow path or the third air flow path to the first air flow path.
  • the pressure detection unit is based on pressure information output from the plurality of pressure sensors. Detects cuff pressure in the cuff.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors with each other, and based on the comparison result, Detect that at least one is abnormal.
  • the electronic blood pressure monitor further includes a timer for measuring time.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors, and detects that at least one of the plurality of pressure sensors is abnormal based on the comparison result. To do.
  • the electronic sphygmomanometer further includes a power supply unit made of a battery.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors with each other, and at least one of the plurality of pressure sensors is based on the comparison result. Detect that it is abnormal.
  • the electronic sphygmomanometer further includes a power supply unit that is supplied with electric power from the outside and outputs the supplied electric power to each unit of the electronic sphygmomanometer.
  • the abnormality detection unit compares the pressure information corresponding to each of the plurality of pressure sensors with each other, and based on the comparison result, at least one of the plurality of pressure sensors. One is abnormal.
  • the abnormality detection unit compares pressure information corresponding to each of the plurality of pressure sensors with each other, and based on the comparison result, at least one of the plurality of pressure sensors is abnormal. To detect.
  • the electronic sphygmomanometer displays whether the plurality of pressure sensors are normal or abnormal based on the detection result of the abnormality detection unit.
  • the electronic sphygmomanometer displays whether each of the plurality of pressure sensors is normal or abnormal based on the detection result of the abnormality detection unit.
  • whether the pressure sensor is normal or abnormal is indicated according to the cuff pressure detected corresponding to the pressure sensor.
  • the electronic sphygmomanometer displays whether the pressure sensor is normal or abnormal.
  • the electronic sphygmomanometer displays whether the pressure sensor is normal or abnormal.
  • the electronic sphygmomanometer further includes a storage unit for storing blood pressure data calculated by the blood pressure calculation unit.
  • the blood pressure measurement result includes blood pressure data read from the storage unit.
  • the electronic sphygmomanometer determines whether the plurality of pressure sensors are normal or abnormal based on the detection result of the abnormality detection unit. Is displayed.
  • the blood pressure measurement and the abnormality detection of the plurality of pressure sensors can be performed based on the cuff pressure detected using the plurality of pressure sensors, so that the reliability of the blood pressure measurement values is improved. be able to.
  • FIG. 2 is a hardware configuration diagram of the electronic blood pressure monitor according to Embodiment 1.
  • FIG. 3 is a functional configuration diagram of the electronic blood pressure monitor according to Embodiment 1.
  • FIG. 3 is a processing flowchart of blood pressure measurement according to the first embodiment.
  • 6 is a diagram for explaining a blood pressure calculation procedure according to Embodiment 1.
  • FIG. It is a figure explaining the characteristic of a pressure sensor.
  • 4 is a flowchart showing a procedure for stopping a blood pressure measurement operation according to the first embodiment.
  • 3 is a flowchart showing a processing procedure for not starting a blood pressure measurement operation according to the first embodiment.
  • FIG. 6 is a processing flowchart of abnormality detection of the pressure sensor according to the second embodiment.
  • FIG. 9 is a hardware configuration diagram of an electronic blood pressure monitor according to Embodiment 3. 6 is a functional configuration diagram of an electronic blood pressure monitor according to Embodiment 3.
  • FIG. 9 is a hardware configuration diagram of an electronic blood pressure monitor according to Embodiment 3. 6 is a functional configuration diagram of an electronic blood pressure monitor according to Embodiment 3.
  • FIG 10 is a processing flowchart of abnormality detection of the pressure sensor according to the third embodiment. It is a figure which shows an example of the display which concerns on each embodiment of this invention. It is a figure which shows the other example of the display which concerns on each embodiment. It is a figure which shows the further another example of the display which concerns on each embodiment. It is a figure which shows the external appearance of a wrist type
  • Embodiment 1 an electronic sphygmomanometer in which two pressure sensors are mounted will be described.
  • the measurement site is assumed to be the upper arm.
  • An electronic sphygmomanometer calculates blood pressure by the oscillometric method. Note that the method applied for blood pressure calculation is not limited to the oscillometric method.
  • the electronic sphygmomanometer 1 includes a main body 10 and a cuff 20 that can be wound around the upper arm of the measurement subject.
  • the cuff 20 includes an air bag 21.
  • a display unit 40 made of, for example, liquid crystal and an operation unit 41 including a plurality of switches for receiving instructions from a user (a person to be measured) are arranged.
  • the main body unit 10 includes the display unit 40 and the operation unit 41 described above.
  • the main unit 10 includes a central processing unit (CPU) 100 for centrally controlling each unit to perform various arithmetic processes, and a processing memory for storing programs and data for causing the CPU 100 to perform predetermined operations. 42, a data storage memory 43 for storing measured blood pressure data and the like, a power supply 44 for supplying power to each part of the main body 10, and a current time is measured and the timed data is output to the CPU 100. Timer 45.
  • CPU central processing unit
  • the operation unit 41 includes a power switch 41A that receives an input of an instruction to turn on or off the power, a measurement switch 41B that receives an instruction to start measurement, a stop switch 41C that receives an instruction to stop measurement, and a memory 43 has a memory switch 41D for receiving an instruction to read information such as blood pressure data stored in the memory 43 from the memory 43 and display it on the display unit 40, and a timer set switch 41E operated to set the timer 45.
  • the main body 10 further has a cuff pressure adjusting mechanism including a pump 51 and an exhaust valve (hereinafter referred to as a valve) 52.
  • An air system including first and second pressure sensors 321 and 322 for detecting the pressure (cuff pressure) in the pump 51, the valve 52, and the air bladder 21 is contained in the cuff 20 via the air tube 31. Connected to the air bag 21.
  • the main body 10 further includes the air system described above, a cuff pressure adjusting mechanism, and first and second oscillation circuits 331 and 332.
  • the cuff pressure adjusting mechanism includes a pump drive circuit 53 and a valve drive circuit 54 in addition to the pump 51 and the valve 52.
  • the pump 51 supplies air to the air bladder 21 in order to increase the cuff pressure.
  • the valve 52 is opened and closed to exhaust or seal the air in the air bladder 21.
  • the pump drive circuit 53 controls the drive of the pump 51 based on a control signal given from the CPU 100.
  • the valve drive circuit 54 controls the opening and closing of the valve 52 based on a control signal given from the CPU 100.
  • the first and second pressure sensors 321 and 322 are capacitive pressure sensors.
  • the capacitance values of the first and second pressure sensors 321 and 322 change according to the cuff pressure to be detected.
  • Each of the first and second oscillation circuits 331 and 332 is connected to a corresponding pressure sensor and oscillates based on the capacitance value of the corresponding pressure sensor. Thereby, each of the first and second oscillation circuits 331 and 332 outputs a signal having a frequency corresponding to the capacitance value of the corresponding pressure sensor (hereinafter referred to as a frequency signal).
  • the frequency signals output from the first and second oscillation circuits 331 and 332 are given to the CPU 100.
  • the CPU 100 detects the pressure by converting the frequency signal input from the first oscillation circuit 331 or the second oscillation circuit 332 into a pressure.
  • FIG. 3 shows the functional configuration of the electronic sphygmomanometer 1.
  • the CPU 100 includes a pressure adjustment unit 111, a blood pressure calculation unit 112, a sensor abnormality detection unit 113, a recording unit 114, and a display processing unit 115.
  • the pressure adjusting unit 111 controls the pump 51 and the valve 52 via the pump drive circuit 53 and the valve drive circuit 54, and flows the air into and out of the air bag 21 via the air tube 31, thereby adjusting the cuff pressure. adjust.
  • the blood pressure calculation unit 112 detects pulse wave amplitude information based on a frequency signal (this frequency signal indicates a pressure information signal) input from the first oscillation circuit 331 or the second oscillation circuit 332. Then, systolic blood pressure and diastolic blood pressure are calculated according to the oscillometric method based on the detected pulse wave amplitude information, and the pulse rate per predetermined time is calculated based on the detected pulse wave amplitude information. Specifically, in the process of gradually increasing (or reducing) the cuff pressure to a predetermined value by the pressure adjusting unit 111, the pulse wave amplitude is based on the cuff pressure input from the first oscillation circuit 331 or the second oscillation circuit 332.
  • systolic blood pressure and diastolic blood pressure of the measurement subject are calculated based on the detected pulse wave amplitude information.
  • Conventionally known methods can be applied to blood pressure calculation and pulse rate calculation according to the oscillometric method by the blood pressure calculation unit 112.
  • the sensor abnormality detection unit 113 receives the frequency signals output from the first oscillation circuit 331 and the second oscillation circuit 332, and analyzes the input signals to thereby detect abnormalities in the first pressure sensor 321 and the second pressure sensor 322. Is detected.
  • the recording unit 114 has a function of reading data from the memory 43 or writing data to the memory 43. Specifically, the recording unit 114 receives output data from the blood pressure calculation unit 112 and stores the input data (blood pressure measurement data) in a predetermined storage area of the memory 43. Further, the output data from the sensor abnormality detection unit 113 is input, and the input data (pressure sensor abnormality detection result) is stored in a predetermined storage area of the memory 43. The recording unit 114 reads measurement data from a predetermined storage area of the memory 43 based on the operation of the memory switch 41 ⁇ / b> D of the operation unit 41, and gives the read measurement data to the display processing unit 115.
  • the display processing unit 115 inputs the given data, converts the input data into a displayable format, and displays it on the display unit 40.
  • FIG. 3 shows only a portion of the peripheral circuit of the CPU 100 that directly inputs and outputs with the CPU 100.
  • the flowchart of FIG. 4 is stored in advance in the memory 42 as a program.
  • the CPU 100 reads the program from the memory 42 and executes the read program instruction, whereby the blood pressure measurement process of FIG. 4 is realized.
  • step ST1 when the measurement subject operates (presses) the power switch 41A (step ST1), the CPU 100 initializes a working memory (not shown) (ST2).
  • the person to be measured wraps the cuff 20 around the measurement site as shown in FIG.
  • the pressure adjustment unit 111 outputs a control signal to the pump drive circuit 53 and the valve drive circuit 54.
  • the pump drive circuit 53 and the valve drive circuit 54 drive the pump 51 after closing the valve 52 based on the control signal.
  • the cuff pressure is gradually increased to a predetermined pressure (steps ST5 and ST6).
  • step ST6 After pressurizing to a predetermined pressure, that is, when the condition of (cuff pressure ⁇ predetermined pressurization value) is established in step ST6, the pressure adjusting unit 111 outputs a control signal to the pump drive circuit 53 and the valve drive circuit 54.
  • the pump drive circuit 53 and the valve drive circuit 54 stop the pump 51 based on the control signal, and then control the valve 52 to open gradually. Thereby, the cuff pressure is gradually reduced (step ST7).
  • the blood pressure calculation unit 112 is based on the frequency signal output from the first oscillation circuit 331 or the second oscillation circuit 332, that is, based on the cuff pressure signal detected by the first pressure sensor 321 or the second pressure sensor 322. Based on the detected pulse wave amplitude information, a predetermined calculation is performed using the detected pulse wave amplitude information. By this calculation, systolic blood pressure and diastolic blood pressure are calculated (steps ST8 and ST9).
  • the pulse wave amplitude information represents the volume change component of the artery at the measurement site and is included in the detected cuff pressure signal.
  • the blood pressure measurement is not limited to the decompression process, and may be performed in the pressurization process (step ST5).
  • step ST9 When the systolic blood pressure and the diastolic blood pressure are calculated and determined (YES in step ST9), the pressure adjustment unit 111 fully opens the valve 52 via the valve drive circuit 54. Thereby, the air in the cuff 20 is exhausted rapidly (step ST10).
  • the blood pressure data calculated by the blood pressure calculation unit 112 is given to the display processing unit 115 and the recording unit 114.
  • the display processing unit 115 inputs the given blood pressure data and displays the input blood pressure data on the display unit 40 (step ST11).
  • the recording unit 114 inputs blood pressure data to be given, stores the input blood pressure data in the predetermined storage area of the memory 43 in association with the time data input from the timer 45 (step ST12).
  • the blood pressure calculation unit 112 can also calculate the pulse rate based on the detected pulse wave amplitude information.
  • the calculated pulse rate is displayed on the display unit 40 by the display processing unit 115 and stored in the memory 43 in association with the blood pressure data by the recording unit 114.
  • the electronic sphygmomanometer 1 calculates the average value of the cuff pressure detected by the two pressure sensors 321 and 322 as the blood pressure. Therefore, even if the detection accuracy of one of the pressure sensors varies due to secular change, the reliability of the blood pressure measurement value can be improved by calculating the average value.
  • the averaging unit 1121 of the blood pressure calculation unit 112 uses the cuff pressure detected by the first and second pressure sensors 321 and 322 as the first and second oscillation circuits 331 and 332. Enter through.
  • the output signal of the first pressure sensor 321 is cuff pressure a
  • the output signal of the second pressure sensor 322 is cuff pressure b.
  • the averaging unit 1121 extracts pulse wave amplitude information based on the frequency signals corresponding to the cuff pressures a and b input from the first and second oscillation circuits 331 and 332, respectively. Then, a blood pressure value is calculated based on the extracted pulse wave amplitude information.
  • systolic blood pressure SBPa and diastolic blood pressure DBPa are calculated based on pulse wave amplitude information of cuff pressure a
  • systolic blood pressure SBPb and diastolic blood pressure DBPb are calculated based on pulse wave amplitude information of cuff pressure b.
  • the average value of the systolic blood pressure SBPa and SBPb and the average value of the diastolic blood pressure DBPa and DBPb are calculated.
  • the calculated average blood pressure value is displayed on the display unit 40 and stored in the memory 43. Thereby, a highly reliable blood pressure measurement value is obtained.
  • a median value may be used instead of the average value.
  • the output value of that pressure sensor should be excluded when calculating the average or median value. May be.
  • FIG. 5 shows the cuff pressure that is gradually reduced along the time axis measured by the timer 45, and the lower part shows the pulse corresponding to the above-described pulse wave amplitude information along the same time axis.
  • a wave amplitude envelope 600 is shown.
  • the envelope 600 of the pulse wave amplitude is detected by extracting the pulse wave amplitude signal superimposed on the signal (cuff pressure) output from the pressure sensor in time series.
  • blood pressure calculation unit 112 when blood pressure calculation unit 112 detects maximum amplitude value MAX in the envelope of pulse wave amplitude, it multiplies the detected maximum value MAX by a predetermined constant (for example, 0.7 and 0.5). Thus, two threshold values TH_DBP and TH_SBP are calculated. Then, the blood pressure calculation unit 112 cuffs at the point where the threshold TH_DBP and the envelope 600 intersect on the side where the cuff pressure is lower than the cuff pressure MAP (average blood pressure) detected at the time point T0 when the maximum value MAX is detected. Pressure is calculated as diastolic blood pressure. Further, the cuff pressure at the point where the threshold value TH_SBP and the envelope 600 intersect on the side where the cuff pressure is higher than the cuff pressure MAP is calculated as the systolic blood pressure.
  • a predetermined constant for example, 0.7 and 0.5
  • averaging section 1121 inputs signals of cuff pressures a and b from first and second oscillation circuits 331 and 332. Then, pulse wave amplitude information is detected based on the average value of the input signals of cuff pressures a and b, and systolic blood pressure SBP and diastolic blood pressure DBP are calculated based on the detected pulse wave amplitude information.
  • the value abnormality determination unit 1122 of the blood pressure calculation unit 112 calculates the systolic blood pressure SBPa and SBPb and the diastolic blood pressure during blood pressure calculation (step ST8 in FIG. 4). Enter DBPa and DBPb. And the difference of both is detected by comparing the input systolic blood pressure SBPa and SBPb. Similarly, a difference is detected for diastolic blood pressure DBPa and DBPb. Then, each detected difference is compared with a predetermined value (for example, 5 mmHg). If it is determined that one or both of the differences exceed the predetermined value based on the comparison result, it is determined that one of the pressure sensors is abnormal.
  • a predetermined value for example, 5 mmHg
  • the value abnormality determination unit 1122 compares the cuff pressures a and b indicated by the frequency signals input from the first and second oscillation circuits 331 and 332, and the difference is a predetermined value (for example, 5 mmHg) based on the comparison result. If it is determined that the pressure exceeds the value, it is determined that one of the pressure sensors is abnormal.
  • a predetermined value for example, 5 mmHg
  • the blood pressure calculation unit 112 does not use the calculated blood pressure measurement data for display / recording based on the determination result, that is, discards it. To do. Thereby, the reliability of the blood pressure measurement value can be improved. Instead of discarding, the blood pressure measurement data may be displayed on the display unit 40 together with information (message) instructing that the pressure sensor is abnormal. Further, the blood pressure measurement data may be stored in the memory 43 in association with a flag indicating that the pressure sensor is abnormal.
  • the pressure sensor is calibrated when the electronic blood pressure monitor 1 is manufactured.
  • the output when the pressure sensor detects a predetermined pressure value (0 mmHg, 300 mmHg) (in this embodiment, indicates the frequency of the output signal of the oscillation circuit) is measured, and the measured value is a predetermined value in the memory 43.
  • the predetermined pressure value (0 mmHg, 300 mmHg) relies on the electronic sphygmomanometer 1 being designed to measure blood pressure from 0 to 299 mmHg. This measured value is not rewritable in the memory 43 and is not erased.
  • the value measured when the first and second pressure sensors 321 and 322 are calibrated at the time of manufacture is stored in a predetermined storage area of the memory 43.
  • the blood pressure calculation unit 112 compares the measured value of the calibrated output of the pressure sensor read out from the memory 43 with the measured value of the output of the pressure sensor at the time of initialization. Based on the result, 0 mmHg correction of the current pressure sensor is performed.
  • the measured values of the pressure sensor output when calibrated for 0 mmHg and 300 mmHg at the time of manufacture are M0 and M300, respectively, and the measured value of the output at the time of initialization of the pressure sensor is U0.
  • the blood pressure calculation unit 112 calculates the pressure value P (mmHg) according to (Equation 1).
  • the calculated pressure value P corresponds to the cuff pressure shown in the upper part of FIG.
  • Pressure value P ⁇ (f ⁇ U0 ⁇ M0) ⁇ (M300 ⁇ M0) ⁇ ⁇ 300 (Expression 1)
  • the calculation of the pressure value P according to the above (Equation 1) will be further described with reference to the graph of the characteristics of the pressure sensor in FIG.
  • the horizontal axis represents the pressure (mmHg) indicating the cuff pressure
  • the vertical axis represents the frequency (Hz) of the output signal of the oscillation circuit.
  • FIG. 6 shows a pressure sensor characteristic L1 when the electronic sphygmomanometer 1 is manufactured and a current pressure sensor characteristic L2.
  • the sensor abnormality detection unit 113 detects abnormality of the pressure sensor (step ST8a).
  • the sensor abnormality detection unit 113 reads outputs U0 and M0 corresponding to the first and second pressure sensors 321 and 322 from the memory 43, respectively. Then, for each pressure sensor, the difference between the read outputs M0 and U0 is calculated, and the calculated difference is compared with a predetermined value. As a result, when it is detected that the difference exceeds a predetermined value, it is determined that the pressure sensor corresponding to the outputs U0 and M0 for which the difference is calculated is abnormal.
  • the above difference (difference between outputs M0 and U0) is not more than a predetermined value, but there is a difference between the pressure values indicated by the output signals of the pressure sensors. Any pressure sensor is determined to be abnormal. Specifically, among the first and second pressure sensors 321 and 322, the pressure sensor having the larger calculated difference (difference between outputs M0 and U0) is identified as abnormal.
  • the detection result of the sensor abnormality detection unit 113 may be displayed on the display unit 40 via the display processing unit 115.
  • the person to be measured who confirms this display can know whether or not the pressure sensor is abnormal, so that even if the blood pressure measurement result deviates from the normal value, a sense of security can be obtained. It is also possible to eliminate concerns about the accuracy of blood pressure measurement values. Further, the detection result of the sensor abnormality detection unit 113 may be stored in the memory 43 in association with the blood pressure measurement data via the recording unit 114.
  • the blood pressure can be calculated using the other pressure sensor, so the electronic sphygmomanometer resulting from the pressure sensor It is also possible to reduce the failure rate of 1 to 1 ⁇ 2.
  • FIG. 7 shows a process in which steps ST5a, ST7a and ST14 are added to the blood pressure measurement process of FIG. Since the other processes in FIG. 7 are the same as those described with reference to FIG. 4, the added processes will be described here.
  • the sensor abnormality detecting unit 113 follows each of the first and second pressure sensors 321 and 322 in accordance with the above-described (sensor abnormality detection) procedure. It is detected whether normal operation is being performed (steps ST5a and ST7a). When it is detected that a normal operation is being performed (“sensor normal” in step ST5a or 7a), blood pressure measurement is performed by continuing the pressurizing operation and the depressurizing operation.
  • step ST5a or ST7a that the pressure sensor is abnormal (“sensor abnormal” in step ST5a or 7a)
  • the process proceeds to step ST14, and an operation for stopping blood pressure measurement is performed. .
  • the air in the air bag 21 of the cuff 20 is exhausted rapidly. Thereafter, the blood pressure measurement ends.
  • a message that “the blood pressure measurement is stopped due to a pressure sensor abnormality” may be output to the display unit 40.
  • the rapid exhaust is realized by the pressure adjusting unit 111 fully opening the valve 52 via the valve drive circuit 54.
  • the detected cuff pressure may be performed at each of a plurality of predetermined cuff pressures.
  • FIG. 8 shows a process in which steps ST3a, ST4a and ST4b are added to the blood pressure measurement process of FIG. Since the other processes in FIG. 8 are the same as those described in FIG. 4, the added processes will be described here.
  • first and second pressure sensors 321 and 321 are detected by sensor abnormality detector 113 according to the above-described (sensor abnormality detection) procedure. It is detected whether each of 322 is operating normally (step ST3a).
  • step ST4 When the measurement switch 41B is operated by the measurement subject and the start of blood pressure measurement is instructed (step ST4), it is determined that the pressure sensor is operating normally based on the detection result of step ST3a (in step ST4a). “Sensor normal”), the process proceeds to step ST5, and the subsequent blood pressure measurement process is started.
  • step ST4b when it is determined that the pressure sensor is operating abnormally based on the detection result of step ST3a (“sensor abnormality” in step ST4a), an error display process is performed (step ST4b). That is, the sensor abnormality detection unit 113 provides a signal indicating that the abnormality of the sensor has been detected to the display processing unit 115, so that the display processing unit 115 generates a sensor abnormality via the display unit 40 based on the given signal. An error message to this effect is displayed. The measurement subject can know the reason why the blood pressure measurement is not started by checking this message. Thereafter, the blood pressure measurement process ends.
  • an electronic sphygmomanometer 1A having an appearance different from that of the electronic blood pressure 1 of FIG. 1 applied to the first embodiment is shown. Even the electronic sphygmomanometer 1A can have the functional configuration shown in FIG. And even if it is 1A of electronic blood pressure monitors, the procedure of the abnormality detection of the pressure sensor and the procedure of blood pressure measurement which were demonstrated in Embodiment 1 are applicable.
  • FIG. 9 and 10 show the external appearance of the electronic sphygmomanometer 1A.
  • 9 shows an overview of the electronic sphygmomanometer 1A with the cuff portion removed from the main body
  • FIG. 10 shows an overview of the electronic sphygmomanometer 1A with the cuff attached to the main body.
  • the electronic sphygmomanometer 1A mainly includes a main body 110A and a cuff 150A.
  • the main body 110A and the cuff 150A are connected by an air tube 31 serving as an air path.
  • the air tube 31 is made of a tubular member having moderate flexibility.
  • the main body 110 ⁇ / b> A includes a base portion 211 and a receiving portion 212 that are placed on a placement table such as a desk.
  • the accommodated portion 212 corresponds to a portion protruding upward from the upper surface 211a of the base portion 211 in a state where the main body portion 110A is placed on the base.
  • the to-be-contained part 212 is a part covered with the cuff part 150A when the electronic sphygmomanometer 1A is not used.
  • the accommodated portion 212 is formed in a substantially cylindrical shape by a resin material having rigidity.
  • the electronic sphygmomanometer 1 ⁇ / b> A includes the display unit 40 on the peripheral surface of the accommodated portion 212, and the operation unit 41 on the peripheral surface 211 b of the side portion of the base portion 211.
  • the electronic sphygmomanometer 1A includes a micro switch 218 as a detection unit that detects whether or not the cuff unit 150A is set in the main body unit 110A at a predetermined position on the upper surface 211a of the base unit 211.
  • the electronic sphygmomanometer 1A includes a fixing hook 214 and a movable hook 215 as a fixing part that fixes the cuff part 150A to the main body part 110A in a state where the cuff part 150A is set on the main body part 110A.
  • a release button 216 is provided on the peripheral surface 211 b of the base portion 211. Release button 216 is provided in association with movable hook 215. The measurement subject can release the locking of the cuff portion 150 ⁇ / b> A by the fixed hook 214 and the movable hook 215 by operating the release button 216.
  • the outer shape of the cuff portion 150A is formed in a substantially cylindrical shape so that the cuff portion 150A can be attached to the upper arm, which is the measurement site of the measurement subject, when the electronic sphygmomanometer 1A is used.
  • the cuff 150A includes an air bag 21 as a fluid bag for pressing the upper arm, a shell 260 that is a substantially cylindrical machine frame formed so as to cover the outside of the air bag 21, and the air bag 21. And a cuff cover 274 that covers the inside.
  • the air bag 21 is disposed along the inner peripheral surface of the shell 260.
  • the cuff portion 150A has a hollow portion 251 into which the upper arm can be inserted in the use state.
  • a grip 262 that can be gripped by a hand opposite to the upper arm to which the cuff 150A is attached is provided at a predetermined position on the peripheral surface of the shell 260 in order to facilitate the attachment / detachment work to the upper arm of the cuff 150A. It has been.
  • concave portions 264 and 265 that engage with the fixed hook 214 and the movable hook 215 described above are provided at predetermined positions on the peripheral surface of the shell 260.
  • the micro switch 218 is provided on the upper surface 211a of the base portion 211 of the main body portion 110A.
  • the microswitch 218 is arranged such that its switch portion protrudes upward from the upper surface 211a of the base portion 211 in a non-pressed state.
  • the switch portion of the micro switch 218 is pushed down in the figure by the axial end surface of the cuff portion 150A.
  • the micro switch 218 detects whether or not the cuff portion 150A is attached to the main body portion 110A, that is, whether or not the accommodated portion 212 is accommodated in the cuff portion 150A.
  • the electronic sphygmomanometer 1A As shown in FIG. 9, when the cuff part 150A is detached from the main body part 110A, it is possible to insert the upper arm from the axial direction into the hollow part 251 provided in the cuff part 150A. Thus, the cuff portion 150A can be mounted on the upper arm.
  • the accommodation portion 212 of the main body portion 110A is accommodated in the hollow portion 251 of the cuff portion 150A.
  • the non-use state when the total 1A is not used is taken. In the non-use state, the display unit 40 and the operation unit 41 provided on the main body unit 110A are covered with the cuff unit 150A.
  • the configuration in which the cuff portion is attached to the substantially cylindrical member of the main body portion may be a configuration as shown in FIGS. 11 and 12.
  • FIG. 11 shows a state where the cuff part is removed from the main body part
  • FIG. 12 shows a state where the cuff part is attached to the main body part.
  • the same parts as those in the electronic sphygmomanometer 1A are given the same reference numerals in the drawings, and the description thereof will not be repeated here.
  • the electronic sphygmomanometer 1B shown in FIG. 11 and FIG. 12 mainly includes a main body part 110B and a cuff part 150B, similarly to the electronic sphygmomanometer 1A.
  • the main body 110B and the cuff 150B are connected by an air tube 31.
  • the configuration of the main body portion 150B is that a mechanism for fixing the cuff portion 150B to the main body portion 110B is not provided when the cuff portion 150B is attached to the main body portion 110B, and is the cuff portion 150B attached to the main body portion 110B? This is the same as the main body 110A described above except that no detection mechanism for detecting whether or not is provided.
  • the cuff portion 150B has a substantially cylindrical outer shape that is attached to the upper arm of the measurement subject when the electronic sphygmomanometer 1B is used.
  • the cuff portion 150B includes an air bag 21 as a fluid bag for compressing the upper arm, a curler (not shown), and a cover body 280 as a bag-like exterior member containing the air bag 21 and the curler.
  • the curler is a curved elastic plate that is disposed outside the air bag 21 and biases the air bag 21 against the upper arm in a state where the cuff portion 150B is wound around the upper arm.
  • the cuff portion 150B has a hollow portion 251 into which the upper arm can be inserted in the used state.
  • the electronic sphygmomanometer 1B is configured to be capable of taking two states, a state where the cuff portion 150B is attached to the main body portion 110B and a state where the cuff portion 150B is detached from the main body portion 110B.
  • a state where the cuff portion 150B is attached to the main body portion 110B and a state where the cuff portion 150B is detached from the main body portion 110B.
  • the upper arm can be attached to the upper arm of the cuff part 150B by inserting the upper arm into the hollow part 251 provided in the cuff part 150B. Will be in a different usage state.
  • FIG. 11 when the cuff part 150B is detached from the main body part 110B, the upper arm can be attached to the upper arm of the cuff part 150B by inserting the upper arm into the hollow part 251 provided in the cuff part 150B. Will be in a different usage state.
  • the accommodation part 212 of the main body part 110B is accommodated in the hollow part 251 of the cuff part 150B, and the electronic blood pressure is increased.
  • the non-use state when the total 1B is not used is taken.
  • the display part 40 provided in the main-body part 110B is covered with the cuff part 150B.
  • FIG. 13 shows a processing procedure for sensor abnormality detection when the pressure sensor is initialized in the electronic sphygmomanometer of the present embodiment.
  • the flowchart of FIG. 13 is implemented in step ST3 described above.
  • the procedure is the same as the blood pressure measurement process of the first embodiment, and thus the description thereof is omitted.
  • the processing of steps ST1 to ST3 described in FIG. 4 is executed in the above-described non-use state (the state where the cuff portion 150A (150B) is attached to the main body portion 110A (110B)). Thereafter, the measurement subject wears the cuff portion 150A (150B) on the upper arm, so that the electronic sphygmomanometer transitions from the non-use state to the use state.
  • the blood pressure measurement process after step ST4 is performed in the use state.
  • step ST211 At the time of initialization of the pressure sensor in the non-use state, 0 mmHg correction of all the pressure sensors is performed (step ST211).
  • the pump drive circuit 53 drives the pump 51 at a predetermined voltage for a predetermined time, thereby sending a predetermined amount of air into the air bladder 21 (steps ST212 to ST214).
  • Pressure sensor abnormality detection section 113 detects the output values of first and second pressure sensors 321 and 322 at that time (step ST215). Then, the difference between the detected output values is calculated, the calculated difference is compared with a predetermined value, and an abnormality of the pressure sensor is detected based on the comparison result (step ST216).
  • step ST216 if it is detected that the difference indicates a predetermined value or less, all the pressure sensors are determined to be normal (YES in step ST216). On the other hand, when it is detected that the difference indicates a value larger than a predetermined value (NO in step ST216), an abnormal sensor is specified (step ST217).
  • This abnormality sensor can be specified by the above-described method (sensor abnormality detection). Information indicating the specified abnormal pressure sensor is displayed on the display unit 40.
  • step ST228 the air in the air bag 21 of the cuff 20 is exhausted. This completes the initialization of the pressure sensor (step ST3).
  • the configuration for detecting the abnormality of the pressure sensor is not limited to that shown in the first and second embodiments, and may be detected by the configuration of the third embodiment.
  • the electronic sphygmomanometer 1C of FIG. 14 differs from the configuration of FIG. 2 of the first embodiment in that the electronic sphygmomanometer 1C of FIG. 14 includes a main body 101 instead of the main body 10 of FIG.
  • the main body 101 internally controls the tank 57 that stores a certain amount of air, the switching valve 56 that is connected to the tank 57 via the air tube 31, and the opening / closing operation of the switching valve 56.
  • a switching valve drive circuit 55 is provided.
  • a main body 101 in FIG. 14 includes a CPU 1001 instead of the CPU 100 in FIG.
  • the air tube 31 is connected to the switching valve 56.
  • the air tube 31 is connected to the first and second pressure sensors 321 and 322, the pump 51 and the valve 52 in common (hereinafter referred to as the first air tube) and the cuff 20 (air bag 21). It consists of an air tube (referred to as a second air tube) to be connected and an air tube (referred to as a third air tube) connected to the tank 57.
  • CPU 1001 includes a switching control unit 116 in addition to the configuration of FIG.
  • the switching control unit 116 controls the switching valve drive circuit 55.
  • FIG. 16 shows a processing procedure for detecting a sensor abnormality when the pressure sensor is initialized.
  • the flowchart of FIG. 16 is implemented in step ST3 described above.
  • the procedure is the same as the blood pressure measurement process of the first embodiment, and thus the description thereof is omitted.
  • the output values of the first and second pressure sensors 321 and 322 when a predetermined amount of air is fed into the tank 57 are compared. If it is detected that the difference between the two output values exceeds a predetermined value (for example, 5 mmHg) based on the comparison result, one of the pressure sensors is determined to be abnormal.
  • a predetermined value for example, 5 mmHg
  • switching control unit 116 first outputs a control signal to switching valve drive circuit 55. Based on the control signal, the switching valve drive circuit 55 switches the switching valve 56 from the tank 57 side to the cuff 20 side (step ST110). Therefore, the first air tube and the second air tube are connected via the switching valve 56, and the air flow path is constituted by both tubes. In this state, 0 mmHg correction of all pressure sensors is performed (step ST111).
  • the switching control unit 116 outputs a control signal to the switching valve drive circuit 55.
  • the switching valve drive circuit 55 switches the switching valve 56 from the cuff 20 side to the tank 57 side based on the control signal. Therefore, the first air tube is switched from the second air tube to the third air tube via the switching valve 56.
  • the direction in which air flows by the switching valve 56 is on the tank 57 side (step ST121).
  • the pump 51 is driven at a predetermined voltage for a predetermined time by the pump drive circuit 53, and a predetermined amount of air is sent into the tank 57 (steps ST131 to ST151).
  • Pressure sensor abnormality detection section 113 detects the output values of first and second pressure sensors 321 and 322 at that time (step ST161). Then, the difference between the detected output values is calculated, the calculated difference is compared with a predetermined value, and an abnormality of the pressure sensor is detected based on the comparison result (step ST171).
  • step ST171 if it is detected that the difference indicates a predetermined value or less based on the comparison result, all the pressure sensors are determined to be normal (YES in step ST171). On the other hand, when it is detected that the difference indicates a value larger than a predetermined value (NO in step ST171), an abnormal sensor is specified (step ST181). This abnormality sensor can be specified using the above-described method (sensor abnormality detection). Information indicating the specified abnormal pressure sensor is displayed on the display unit 40.
  • the switching control unit 116 outputs a control signal to the switching valve drive circuit 55.
  • the switching valve drive circuit 55 switches the switching valve 56 from the tank 57 side to the cuff 20 side based on the control signal. Therefore, the second air tube is switched and connected from the third air tube to the first air tube via the switching valve 56.
  • the direction in which air flows by the switching valve 56 is on the cuff 20 side (step ST201). This completes the initialization of the pressure sensor (step ST3).
  • Display example 17 to 19 show display examples of the pressure sensor abnormality detection result on the display unit 40.
  • FIG. 1 is a diagrammatic representation of the pressure sensor abnormality detection result on the display unit 40.
  • the display processing unit 115 turns off the “NG” character and turns on only the “OK” character. Yes. If everything is abnormal, the “OK” character is extinguished and the “NG” character is lit.
  • FIG. 18 shows an example in which “NG” / “OK” is displayed for each pressure sensor.
  • “NG” / “OK” is displayed in the message 407 for each pressure sensor.
  • FIG. 18 shows that the first pressure sensor 321 is normal but the second pressure sensor 322 is abnormal.
  • FIG. 19 shows an example in which the current pressure value to be detected is displayed for each pressure sensor in a standby state where the electronic sphygmomanometer is not used for blood pressure measurement.
  • the message 408 indicates that the current pressure value detected by the first pressure sensor 321 is 0 mmHg and the current pressure value detected by the second pressure sensor 322 is 2 mmHg.
  • the person to be measured can obtain the timing for requesting the manufacturer to calibrate the pressure sensor by confirming the display of FIGS. Therefore, it is possible to avoid the blood pressure measurement without noticing that the pressure sensor is abnormal, and to improve the reliability of the blood pressure measurement value.
  • the electronic sphygmomanometer is a stationary type and the cuff 20 is wound around the upper arm, but the cuff 20 and the main body 10 are integrally configured as shown in FIG. Even with a wrist electronic sphygmomanometer in which the cuff 20 is wound around the wrist, the function / configuration of detecting an abnormality of the pressure sensor described in each embodiment can be similarly applied.
  • the sensor abnormality detection unit 113 performs a detection operation when the measurement data is read from the memory 43 in response to the operation of the memory switch 41D and the read measurement data is displayed on the display unit 40. It may be. Alternatively, the detection operation may be performed when the time of the timer 45 is adjusted.
  • the sensor abnormality detection unit 113 may detect the abnormality of the pressure sensor immediately after the battery of the power source 44 is replaced with a new battery.
  • the sensor abnormality detection unit 113 starts supplying power to the power supply 44 from the external power supply Immediately after that, the abnormality of the pressure sensor may be detected.
  • the sensor abnormality detection unit 113 may perform a detection operation in response to an external instruction input via the operation unit 41.
  • the result detected by the sensor abnormality detection unit 113 may be displayed in a standby state before the start of blood pressure measurement, or may be performed when the blood pressure measurement result in step ST11 is displayed.
  • the result of abnormality detection may be displayed every time detection by the sensor abnormality detection unit 113 is performed. Further, the latest abnormality detection result may be read from the memory 43 and displayed in accordance with an external instruction input via the operation unit 41.
  • the present invention is effective in an apparatus for measuring blood pressure using a pressure sensor.

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Abstract

L'invention porte sur un sphygmomanomètre électronique qui est pourvu d’un brassard (20) pour un montage sur une partie devant être mesurée, une section d'augmentation et de réduction de pression comprenant une pompe (51) et une soupape (52) qui ajustent la pression appliquée au brassard (20), une section de détection de pression comprenant un premier capteur de pression (321) et un second capteur de pression (322) qui détectent une pression de brassard dans le brassard (20) de mesure de la pression artérielle, et une unité centrale (100) destinée à calculer la pression artérielle sur la base de la modification de la pression du brassard détectée par la section de détection de pression. Le sphygmomanomètre électronique mesure la pression artérielle sur la base de la pression du brassard détectée correspondant au premier capteur de pression (321) et le second capteur de pression (322) et détecte une anomalie des capteurs de pression.
PCT/JP2009/064426 2008-09-05 2009-08-18 Sphygmomanomètre électronique fournissant des valeurs de mesure avec une fiabilité améliorée WO2010026868A1 (fr)

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DE112009002133T DE112009002133T5 (de) 2008-09-05 2009-08-18 Elektronisches Blutdruckmessgerät zur Erhöhung der Zuverlässigkeit des Messwerts
CN2009801347153A CN102143705B (zh) 2008-09-05 2009-08-18 提高测定值的可靠性的电子血压计
US13/041,044 US20110152700A1 (en) 2008-09-05 2011-03-04 Electronic sphygmomanometer for enhancing reliability of measurement value

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JP2008228627A JP2010057817A (ja) 2008-09-05 2008-09-05 電子血圧計

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011058939A1 (fr) * 2009-11-13 2011-05-19 オムロンヘルスケア株式会社 Sphygmomanomètre électronique
DE102011009695A1 (de) * 2011-01-28 2012-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zylinderförmige Vorrichtung, Pulswellengeschwindigkeitsmesssystem und Verfahren zum Messen einer Pulswellengeschwindigkeit
JP2018112501A (ja) * 2017-01-13 2018-07-19 株式会社デンソー 電池パック及び電源システム
CN109758137A (zh) * 2019-03-06 2019-05-17 江阴市人民医院 一种具有袖带使用寿命报警功能的血压计

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6443151A (en) * 1987-08-12 1989-02-15 Nakakuni Kk Production device for cake of candy with starch base
JP5146439B2 (ja) * 2009-11-04 2013-02-20 オムロンヘルスケア株式会社 電子血圧計
JP5195723B2 (ja) 2009-11-13 2013-05-15 オムロンヘルスケア株式会社 電子血圧計
GB201012337D0 (en) * 2010-07-23 2010-09-08 Grotov Yury Blood pressure monitor calibration
JP5636268B2 (ja) * 2010-11-22 2014-12-03 株式会社パラマ・テック 血圧測定システム及びカフ装置
JP2012200507A (ja) * 2011-03-28 2012-10-22 Omron Healthcare Co Ltd 電子血圧計および演算プログラム
JP5948938B2 (ja) * 2012-02-20 2016-07-06 沖電気工業株式会社 データ生成装置、方法およびプログラム
CN103654752A (zh) * 2013-11-06 2014-03-26 康尚医疗技术（丹阳）有限公司 血压计和启动多次血压测量的方法
US20160100805A1 (en) * 2014-10-10 2016-04-14 Koninklijke Philips N.V. Non-invasive blood pressure monitors and methods of operating the same
JP5977850B1 (ja) * 2015-02-25 2016-08-24 株式会社Icst カフ圧調整装置
JP6658332B2 (ja) * 2016-06-23 2020-03-04 オムロンヘルスケア株式会社 血圧計
JP6683034B2 (ja) * 2016-06-24 2020-04-15 オムロンヘルスケア株式会社 血圧脈波測定装置
US11517210B2 (en) * 2016-09-29 2022-12-06 Physio-Control, Inc. Non-invasive blood pressure measurement
US10722125B2 (en) * 2016-10-31 2020-07-28 Livemetric (Medical) S.A. Blood pressure signal acquisition using a pressure sensor array
US11000193B2 (en) 2017-01-04 2021-05-11 Livemetric (Medical) S.A. Blood pressure measurement system using force resistive sensor array
EP3649929A1 (fr) * 2018-11-06 2020-05-13 Koninklijke Philips N.V. Appareil destiné à être utilisé avec un manchon vestimentaire
CN109620191A (zh) * 2018-12-14 2019-04-16 淄博信质诚检测技术有限公司 一种自动气压平衡装置
KR102315952B1 (ko) * 2019-04-25 2021-10-22 (주)참케어 혈압 측정을 위한 센서모듈 및 이를 이용한 손목 착용형 휴대용 혈압 측정 장치
CN110680297A (zh) * 2019-09-23 2020-01-14 深圳市柯林健康医疗有限公司 一种血压监护仪的故障检测方法、装置及设备
CN110974200A (zh) * 2019-12-09 2020-04-10 深圳科讯恒达医疗科技有限公司 血压计校准方法、系统、电子血压计和校准服务器
CN112914530A (zh) * 2021-01-19 2021-06-08 深圳市迈泰生物医疗有限公司 一种自动校准式智能血压计

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129333A (ja) * 1984-07-19 1986-02-10 日本光電工業株式会社 非観血血圧計試験器
JPS61288833A (ja) * 1985-06-14 1986-12-19 オムロン株式会社 指用電子血圧計
JPH0219133A (ja) * 1988-05-14 1990-01-23 Hewlett Packard Co <Hp> 血圧モニター
JP2007275227A (ja) * 2006-04-05 2007-10-25 Omron Healthcare Co Ltd 血圧計測装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61119239A (ja) * 1984-11-14 1986-06-06 コーリン電子株式会社 血圧モニタ装置
JP3178175B2 (ja) 1993-08-11 2001-06-18 オムロン株式会社 電子血圧計
JP2710594B2 (ja) * 1995-09-20 1998-02-10 日本コーリン株式会社 血圧測定装置
JP4752259B2 (ja) * 2004-12-10 2011-08-17 オムロンヘルスケア株式会社 電子血圧計および血圧測定システム
JP2007111119A (ja) * 2005-10-18 2007-05-10 Omron Healthcare Co Ltd 電子血圧計

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129333A (ja) * 1984-07-19 1986-02-10 日本光電工業株式会社 非観血血圧計試験器
JPS61288833A (ja) * 1985-06-14 1986-12-19 オムロン株式会社 指用電子血圧計
JPH0219133A (ja) * 1988-05-14 1990-01-23 Hewlett Packard Co <Hp> 血圧モニター
JP2007275227A (ja) * 2006-04-05 2007-10-25 Omron Healthcare Co Ltd 血圧計測装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011058939A1 (fr) * 2009-11-13 2011-05-19 オムロンヘルスケア株式会社 Sphygmomanomètre électronique
JP2011103969A (ja) * 2009-11-13 2011-06-02 Omron Healthcare Co Ltd 電子血圧計
US9572500B2 (en) 2009-11-13 2017-02-21 Omron Healthcare Co., Ltd. Electronic sphygmomanometer
DE102011009695A1 (de) * 2011-01-28 2012-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zylinderförmige Vorrichtung, Pulswellengeschwindigkeitsmesssystem und Verfahren zum Messen einer Pulswellengeschwindigkeit
JP2018112501A (ja) * 2017-01-13 2018-07-19 株式会社デンソー 電池パック及び電源システム
WO2018131651A1 (fr) * 2017-01-13 2018-07-19 株式会社デンソー Bloc-batterie et système d'énergie
CN109758137A (zh) * 2019-03-06 2019-05-17 江阴市人民医院 一种具有袖带使用寿命报警功能的血压计
CN109758137B (zh) * 2019-03-06 2021-08-10 江阴市人民医院 一种具有袖带使用寿命报警功能的血压计

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JP2010057817A (ja) 2010-03-18
US20110152700A1 (en) 2011-06-23
CN102143705B (zh) 2013-09-18
RU2011107938A (ru) 2012-09-10
CN102143705A (zh) 2011-08-03

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